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參考MSDN

代碼：

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public class BytesOperate{/// <summary>/// 計算校驗和,SUM/// </summary>public byte CalculateCheckSum(byte[] data){int sum = data.Aggregate(0, (current, t) => current + t);return (byte)(sum & 0x00ff);}public short CombineBytesToShort(byte high, byte low){short value = (short) (high << 8); value += low;return value ;}}

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BytesOperate bytesOperate = new BytesOperate();Assert.AreEqual(262, bytesOperate.CombineBytesToShort(0x01, 0x06));Assert.AreEqual(-2, bytesOperate.CombineBytesToShort(0xff, 0xfe));Assert.AreEqual(-1.6, (double)bytesOperate.CombineBytesToShort(0xff, 0xf0) / 10);

使用unchecked:

[TestMethod]public void SignedTest(){int valueInt = 0xfff0;Console.WriteLine("原始值："+ valueInt);Console.WriteLine("原始值十六進制："+ valueInt.ToString("x"));byte high = (byte)(valueInt >> 8);Console.WriteLine("高位值："+high);Console.WriteLine("高位值十六進制："+high.ToString("x"));byte low = (byte)valueInt;Console.WriteLine("低位值："+low);Console.WriteLine("低位值十六進制："+low.ToString("x"));short valueShort =(short)(high << 8);Console.WriteLine("高位左移8："+valueShort);Console.WriteLine("高位左移8十六進制："+valueShort.ToString("X"));valueShort += low;Console.WriteLine("加上低位"+valueShort);Console.WriteLine(valueShort);Console.WriteLine(valueShort.ToString("X"));Assert.AreEqual(-16,valueShort);unchecked{short anotherValue = (short)0xfff0;Assert.AreEqual(-16,anotherValue);}}

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轉載于:https://www.cnblogs.com/pangkang/p/6089198.html

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